<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="js/jquery.min.js"></script>

</head>
<body>
<!--<img id="qrcode" src="../2.jpg">-->

<img src="" id="qrcode" height="300" width="300"/></body>
<script>
    var s=window.location.search.substring(1);
    console.log(s+">>>>>>>>>>");
    $("#qrcode").attr("src","./images/"+s+".jpg");
</script>
</html>